Republican leaders in Tennessee appear to be dialing down the heat on illegal immigration, but activists still worry that the volatile issue could bubble up in an election year.

Gov. Bill Haslam and leaders in the Republican-controlled legislature have said they plan to focus on only one immigration bill — a measure that would require state agencies to check immigration documents — and they are backing away from more controversial proposals, such as police checks and a ban on giving a ride to non-citizens who can’t prove their right to be in the country.

They’ve also moved toward limiting the scope of the one bill they do support.